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Journal Articles

Population of nuclides with Z$$ge$$98 in multi-nucleon transfer reactions of $$^{48}$$Ca+$$^{248}$$Cm

Devaraja, H. M.*; Heinz, S.*; Beliuskina, O.*; Hofmann, S.*; Hornung, C.*; M$"u$nzenberg, G.*; Ackermann, D.*; Gupta, M.*; Gambhir, Y. K.*; Henderson, R. A.*; et al.

European Physical Journal A, 55(2), p.25_1 - 25_9, 2019/02

https://doi.org/10.1140/epja/i2019-12696-3
 Times Cited Count：18 Percentile：79.35(Physics, Nuclear)

Journal Articles

Review of even element super-heavy nuclei and search for element 120

Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; M$"u$nzenberg, G.*; Antalic, S.*; Barth, W.*; Burkhard, K. G.*; Dahl, L.*; Eberhardt, K.*; et al.

European Physical Journal A, 52(6), p.180_1 - 180_34, 2016/06

https://doi.org/10.1140/epja/i2016-16180-4
 Times Cited Count：225 Percentile：93.94(Physics, Nuclear)

Journal Articles

Remarks on the fission barriers of super-heavy nuclei

Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; M$"u$nzenberg, G.*; Antalic, S.*; Barth, W.*; Dahl, L.*; Eberhardt, K.*; Grzywacz, R.*; et al.

European Physical Journal A, 52(4), p.116_1 - 116_12, 2016/04

https://doi.org/10.1140/epja/i2016-16116-0
 Times Cited Count：35 Percentile：87.57(Physics, Nuclear)

Journal Articles

Observation of new neutron-deficient isotopes with Z$$ge$$92 in multinucleon transfer reactions

Devaraja, H. M.*; Heinz, S.*; Beliuskina, O.*; Comas, V. F.*; Hofmann, S.*; Hornung, C.*; M$"u$nzenberg, G.*; Nishio, Katsuhisa; Ackermann, D.*; Gambhir, Y. K.*; et al.

Physics Letters B, 748, p.199 - 203, 2015/09

AA2015-0304.pdf:0.78MB

https://doi.org/10.1016/j.physletb.2015.07.006
 Times Cited Count：110 Percentile：98.53(Astronomy & Astrophysics)

Journal Articles

In-beam fissio study at JAEA for heavy element synthesis

Nishio, Katsuhisa; Ikezoe, Hiroshi; Hofmann, S.*; Ackermann, D.*; Aritomo, Yoshihiro*; Comas, V. F.*; D$"u$llmann, Ch. E.*; Heinz, S.*; Heredia, J. A.*; He${ss}$berger, F. P.*; et al.

AIP Conference Proceedings 1524, p.68 - 72, 2013/04

https://doi.org/10.1063/1.4801679
 Times Cited Count：0 Percentile：0.00(Physics, Nuclear)

Journal Articles

The Reaction $$^{48}$$Ca + $$^{248}$$Cm $$rightarrow$$ $$^{296}$$116$$^{*}$$ studied at the GSI-SHIP

Hofmann, S.*; Heinz, S.*; Mann, R.*; Maurer, J.*; Khuyagbaatar, J.*; Ackermann, D.*; Antalic, S.*; Barth, B.*; Block, M.*; Burkhard, H. G.*; et al.

European Physical Journal A, 48(5), p.62_1 - 62_23, 2012/05

https://doi.org/10.1140/epja/i2012-12062-1
 Times Cited Count：184 Percentile：98.81(Physics, Nuclear)

Journal Articles

Investigation of fission properties and evaporation residue measurement in the reactions using $$^{238}$$U target nucleus

Nishio, Katsuhisa; Ikezoe, Hiroshi; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Aritomo, Yoshihiro; Comas, V. F.*; D$"u$llmann, Ch. E.*; Gorshkov, A.*; Graeger, R.*; et al.

EPJ Web of Conferences, 17, p.09005_1 - 09005_4, 2011/10

https://doi.org/10.1051/epjconf/20111709005
 Times Cited Count：1 Percentile：45.92(Physics, Nuclear)

Journal Articles

Nuclear orientation in the reaction $$^{34}$$S+$$^{238}$$U and synthesis of the new isotope $$^{268}$$Hs

Nishio, Katsuhisa; Hofmann, S.*; He${ss}$berger, F. P.*; Ackermann, D.*; Antalic, S.*; Aritomo, Yoshihiro; Comas, V. F.*; D$"u$llmann, Ch. E.*; Gorshkov, A.*; Graeger, R.*; et al.

Physical Review C, 82(2), p.024611_1 - 024611_9, 2010/08

https://doi.org/10.1103/PhysRevC.82.024611
 Times Cited Count：85 Percentile：95.68(Physics, Nuclear)

Journal Articles

Decay studies of K isomer in $$^{254}$$No

He${ss}$berger, F. P.*; Antalic, S.*; Sulignano, B.*; Ackermann, D.*; Heinz, S.*; Hofmann, S.*; Kindler, B.*; Khuyagbaatar, J.*; Kojouharov, I.*; Kuusiniemi, P.*; et al.

European Physical Journal A, 43(1), p.55 - 66, 2010/01

https://doi.org/10.1140/epja/i2009-10899-9
 Times Cited Count：81 Percentile：95.39(Physics, Nuclear)

Journal Articles

Orientation effects of deformed $$^{238}$$U target nuclei on the fusion probability for the heavy element synthesis

Nishio, Katsuhisa; Hofmann, S.*; Ikezoe, Hiroshi; He${ss}$berger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; et al.

Nuclear Physics A, 805(1-4), p.516 - 518, 2008/06

Journal Articles

Measurement of evaporation residue and fission cross sections of the reaction $$^{30}$$Si + $$^{238}$$U at subbarrier energies

Nishio, Katsuhisa; Hofmann, S.*; Ikezoe, Hiroshi; He${ss}$berger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; et al.

Journal of Nuclear and Radiochemical Sciences, 8(2), p.73 - 78, 2007/10

https://doi.org/10.14494/jnrs2000.8.73

Journal Articles

Identification of a K isomer in $$^{252}$$No

Sulignano, B.*; Heinz, S.*; He${ss}$berger, F. P.*; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Kindler, B.*; Kojouharov, I.*; Kuusiniemi, P.*; Lommel, B.*; et al.

European Physical Journal A, 33(4), p.327 - 331, 2007/09

https://doi.org/10.1140/epja/i2007-10469-3
 Times Cited Count：86 Percentile：96.30(Physics, Nuclear)

Journal Articles

The Reaction $$^{48}$$Ca+$$^{238}$$U $$rightarrow$$ $$^{286}$$112$$^{*}$$ studied at the GSI-SHIP

Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Burkhard, H. G.*; Comas, V. F.*; Dressler, R.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; He${ss}$berger, F. P.*; et al.

European Physical Journal A, 32(3), p.251 - 260, 2007/06

https://doi.org/10.1140/epja/i2007-10373-x
 Times Cited Count：273 Percentile：99.65(Physics, Nuclear)

Journal Articles

Measurement of evaporation residue cross-sections of the reaction $$^{30}$$Si + $$^{238}$$U at subbarrier energies

Nishio, Katsuhisa; Hofmann, S.*; He${ss}$berger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; Ikezoe, Hiroshi; et al.

AIP Conference Proceedings 891, p.71 - 79, 2007/03

https://doi.org/10.1063/1.2713502

Seaborgium isotopes were produced in the fusion reaction $$^{30}$$Si + $$^{238}$$U as evaporation residues (ERs), and the cross sections were determined. The experiment was carried out at GSI in Darmstadt, Germany. At the center-of-mass energy of E$$_{c.m.}$$= 144 MeV, three $$alpha$$ decay chains starting from $$^{263}$$Sg were observed, and the corresponding ER cross section was determined to be 67 pb. At the sub-barrier energy of E$$_{c.m.}$$= 133 MeV, three spontaneous fission events of a new isotope $$^{264}$$Sg were detected. The cross section was 10 pb. The half-life of $$^{264}$$Sg was determined to be 120 ms. The ER cross sections were compared with a statistical model calculation. In the fusion process, the coupled channel calculation taking into account the prolate deformation of $$^{238}$$U was adopted to determine the capture cross section. The calculated capture cross section agrees well with the fission cross section of $$^{30}$$Si + $$^{238}$$U obtained at the JAEA tandem accelerator. The measured cross section of $$^{264}$$Sg at the sub-barrier energy is factor 10$$^{4}$$ larger than the calculation based on the one-dimensional model in the fusion process, showing the fusion enhancement caused by the deformation of $$^{238}$$U. However, disagreement with the calculation suggests the presence of quasi-fission channel. At the above barrier energy of E$$_{c.m.}$$ = 144 MeV, the measured cross section is well reproduced by the calculation. This means that the interaction of $$^{30}$$Si at the equotorial side of $$^{238}$$U has advantage on the fusion process.

Journal Articles

Alpha-$$gamma$$ decay studies of $$^{255}$$Rf, $$^{251}$$No and $$^{247}$$Fm

He${ss}$berger, F. P.*; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Kindler, B.*; Kojouharov, I.*; Kuusiniemi, P.*; Leino, M.*; Lommel, B.*; Mann, R.*; et al.

European Physical Journal A, 30(3), p.561 - 569, 2006/12

https://doi.org/10.1140/epja/i2006-10137-2
 Times Cited Count：59 Percentile：92.07(Physics, Nuclear)

Decay properties of $$^{255}$$Rf, $$^{251}$$No and $$^{247}$$Fm were investigated by measuring the $$alpha$$ and $$gamma$$ decays. The experiment was carried out by using the linear accelerator UNILAC and velocity filter SHIP at GSI. The evaporation residues were separated by the SHIP and implanted into a silicon detector located at the focal plane. The $$alpha$$ decays were detected by the silicon detector itself and the $$gamma$$ rays were detected by Ge detectors. These isotopes were produced by the reaction $$^{207}$$Pb($$^{50}$$Ti, 2n)$$^{255}$$Rf and the $$alpha$$ decay daughters from $$^{255}$$Rf, or by the reaction $$^{206}$$Pb($$^{48}$$Ca, 3n)$$^{251}$$No and the $$alpha$$ decay daughter of $$^{251}$$No. It was found that (1) the 1.0 s isomeric state in $$^{251}$$No is located in the level of 106 keV. (2) The new isomeric state with 2 $$mu$$s was found in $$^{251}$$No, which was directly populated in the reaction $$^{206}$$Pb($$^{48}$$Ca,3n)$$^{251}$$No. The state is located at the level larger than 1700 keV and decays by accompanying two $$gamma$$ rays. These two $$gamma$$-ray energies agreed with the lines which was followed by the $$alpha$$ decay of $$^{255}$$Rf.

Journal Articles

Doubly magic nucleus $$^{270}_{108}$$Hs$$_{162}$$

Dvorak, J.*; Br$"u$chle, W.*; Chelnokov, M.*; Dressler, R.*; D$"u$llmann, Ch. E.*; Eberhardt, K.*; Gorshkov, V.*; J$"a$ger, E.*; Kr$"u$cken, R.*; Kuznetsov, A.*; et al.

Physical Review Letters, 97(24), p.242501_1 - 242501_4, 2006/12

https://doi.org/10.1103/PhysRevLett.97.242501
 Times Cited Count：168 Percentile：96.10(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Measurement of evaporation residue cross-sections of the reaction $$^{30}$$Si+$$^{238}$$U at subbarrier energies

Nishio, Katsuhisa; Hofmann, S.*; He${ss}$berger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; Ikezoe, Hiroshi; et al.

European Physical Journal A, 29(3), p.281 - 287, 2006/09

https://doi.org/10.1140/epja/i2006-10091-y
 Times Cited Count：68 Percentile：93.76(Physics, Nuclear)

Seaborgium isotopes were produced in the fusion reaction $$^{30}$$Si + $$^{238}$$U as evaporation residues (ERs), and the cross sections were determined. The experiment was carried out at GSI in Darmstadt, Germany. At the center-of-mass energy of E$$_{c.m.}$$= 144 MeV, three $$alpha$$ decay chains starting from $$^{263}$$Sg were observed, and the corresponding ER cross section was determined to be 67 pb. At the sub-barrier energy of E$$_{c.m.}$$= 133 MeV, three spontaneous fission events of a new isotope $$^{264}$$Sg were detected. The cross section was 10 pb. The half-life of $$^{264}$$Sg was determined to be 120 ms. The ER cross sections were compared with a statistical model calculation. In the fusion process, the coupled channel calculation taking into account the prolate deformation of $$^{238}$$U was adopted to determine the capture cross section. The calculaed capture cross section agrees well with the fission cross section of $$^{30}$$Si + $$^{238}$$U obtained at the JAEA tandem accelerator. The measured cross section of $$^{264}$$Sg at the sub-barrier energy is factor 10$$^{4}$$ larger than the calculation based on the one-dimensional model in the fusion process, showing the fusion enhancement caused by the deformation of $$^{238}$$U. However, disagreement with the calculation suggests the presence of quasi-fission channel. At the above barrier energy of E$$_{c.m.}$$ = 144 MeV, the measured cross section is well reproduced by the calculation. This means that the interaction of $$^{30}$$Si at the equatorial side of $$^{238}$$U has advantage on the fusion process.

Journal Articles

Alpha-$$gamma$$ decay studies of $$^{255}$$No

He${ss}$berger, F. P.*; Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Kindler, B.*; Kojouharov, I.*; Kuusiniemi, P.*; Leino, M.*; Lommel, B.*; Mann, R.*; et al.

European Physical Journal A, 29(2), p.165 - 173, 2006/08

https://doi.org/10.1140/epja/i2006-10083-y
 Times Cited Count：43 Percentile：88.19(Physics, Nuclear)

Oral presentation

Experimental study on fusion-fission, quasi-fission and multi-nulceon transfer reaction at JAEA

Hirose, Kentaro; Nishio, Katsuhisa; Nishinaka, Ichiro; Makii, Hiroyuki; Ikezoe, Hiroshi*; Orlandi, R.; L$'e$guillon, R.; Tsukada, Kazuaki; Asai, Masato; Nagame, Yuichiro; et al.

no journal, , 

no abstracts in English

Oral presentation

Orientation effects of deformed $$^{238}$$U target nuclei on the fusion probability for heavy element synthesis

Nishio, Katsuhisa; Hofmann, S.*; Ikezoe, Hiroshi; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; He${ss}$berger, F. P.*; et al.

no journal, , 

23 (Records 1-20 displayed on this page)